An artist's book is a form of artistic expression that manifests itself as a 'book'.
The term book is used lightly as items can be made of a variety of materials. For example, the AUB collection includes books made using textiles, sand and metal; they can also employ traditional binding methods or more experimental forms.
Book art or bookworks are terms used to describe artists' books that have a traditional structure, whilst book objects is used to describe 3D outcomes that merely reference the shape of a book.